You should be using and learning React and Angular 2. As much as you can. You're right, we won't be using React and Angular forever. If you're working on a jQuery project, and you want more for yourself, you should find another job. Keeping up with the latest technologies makes you more valuable to the industry and presents you with more opportunities and choices.
Spend your time learning frameworks that have gained traction within the community. React and Angular 2 are currently the trending application frameworks to learn. Other frameworks like Ember, Aurelia, and Vue 2, are interesting projects, but you will be less valuable to the industry if you learn these. Although, learning these frameworks will make it easier to learn any other framework, so it is better than nothing, but not the best thing you can do for yourself.
Like the rest of us, you've only got so much time to get better at what you do. Pick up some side projects, or create your own. Set objectives for what you plan to accomplish and set timelines like any other project. Create stories and tasks, and keep track of all your work.